Flat-warp-knitting frame.



y G. SAUPE. FLAT WARP KNITTING FRAME.

APPLICATION FILED DEC. I8. 1914.

Patented Mar. 6, 1917.

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FLAT WARP KNITTING FRAME.

APPLICATION FILED DEC. I8. 19414.

Patented Mar. 6,1917.

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' FLAT WARP KNITTING FRAME.

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G. SAUPE.

FLAT WARP KNITTING FRAME. APPLICATION FILED Dsc. :8.191-4.

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FLAT WAHP KNITTING FRAME.

APPLICATION FILED Dc.18. 11914.

Patented Mar. 6, 1917.

10 SHEETS-SHEET 5- IIII L G. SAUPE. FLAT WARP KNITTING FRAME. APPLlCTlON FILED DEC. 18| 1914.

1,218,212. Patented Mar. 6, 1917.

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FLAT WARP KNITTING ERAME.

APPLICATION FILED Dsc. is. 1914.

Patented Mar. 6, 1917.

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. FLAT WARP KNITTING FRAME.

APPLICATION FILED 011:.18. |914.

Patented Mar. 6, 1917.

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G. SAUPE.

FLAT WARP KNITTING FRAME. APPncATl'oN FILED Dsc. 1a. 1914.

Patented Mar. 6, 1917.

G. SAUPE.

FLAT WARP KNITTING FRAME.

APPLICATION man Dsc. 1s. 1914.

l Patented Mar.

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Il I] Il Il UNITED sTATEs PATENT oEEIoE.

GEoRG sAUrE, 0E LIMBACH, GERMANY, AssIGNoR To, THE FIRM, ERNST SAUPE, oF

LIMRACH, GERMANY. y

FLAT-WARr-KNITTING FRAME.

Specification of Letters Patent.

Patented Mar. A6, 1917.

Application led December 181, 1914. Serial No. 877,968.

To all whom t may concern:

Be it known that I, GEORG SAUPE, a citizen of the German Empire, residing a Limbach, in the Kingdom of Saxony, Germany, have invented certain new and useful Improvements in Flat-Warp-Knitting Frames; and I do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to`v make and use the same.

My invention relates to improvements in flat warp knitting frames, and the object of the improvements is to provide a frame of this class by means of which fabrics can be made which have the same appearance on both sides, and in which the loops are located in the same line one behind the other, and are made of two warp threads which run in the fabric in opposite directions, each Athread running at each sideV of the fabric and in all the rows of loops in the same direction.

With this and other objects in view my invention consists in the matters to be described hereinafter and particularly pointed out in the appended claims.

For the purpose of explaining the invention severaly examples embodying the same have been' shown in the accompanying drawings, in which the same letters of reference have been used in all the views to indicate corresponding parts. In said drawings- Figure 1,.is a front view of the frame, Fig. 2, is a plan View of a part of the lframe Figs. 3 to 8, are diagrammatical viewsv showing successive steps of -the operation of the frame needles, the presser bars, and

the bayonet machines when forming a loop,`

Figs. 9 to l1, are diagrammatical front views illustrating the method of crossing the threads on the frame needles, and

Figs. 12 to 19, are diagrammatical views similar to those shown in Figs. 3 to 8 and illustrating a modification of the method of forming the loops. i

My improved warp knitting frame is provided with two rows of frame needles 1 and 2 arrangedwith their rear sides opposite each other and adapted to form loops from two sets of warp threads 27 and 28 the number of which is equal to the number of the needles.

The threads are placed ony the frame needles so as to cross each other, and they are brought into positionsJ for being acted upon alternately by the needles of the two rows. In the course of the operation the sets of warp threads are moved in opposite directions along the rows of frame needles,- and \as the threads come to the' ends of the rows of needles they are frame needles land 2 for locking in the row of loops which have been formed and for `,stripping off the row of loops to'be formed. Furthermore, Where the frame needles are in the form of common hooks presser bars 9 and 10 are provided for each row of frame needles for closing the hooks. Furthermore two bayonet machines 5 and 6 are provided by means of which the crossed threads are placed on the frame needles, and finally two bars 7 and 8 provided with ne pins for producing the crossing of the threads, which bars will be termed hereinafter. covering machines.

Referring at irst'to Figs. 1 and 2, to the tworows of frame needles land 2, the sinker bars 3 and 4, the bayonet machines 5 and 6, the covering machines 7 and 8, and the presser bars 9 and 10 the proper movements are imparted from cam disks securedto shafts 11 and 12 which are driven from a main shaft 13 by means of gear wheels 15 to 19. The levers which carry the operating members of the frame and which are driven from the cam disks 27a and 28a are mounted f on shafts 13, 21, 23, 14, 22, y24, 25, and 26. The corresponding members which are located at opposite sides of the center line of the frame performv substantially the same movements. The two rows of warp threads 27 and 28 are taken from rolls 29 and 30 and directed to the rows of needles 1 and 2 in the direction of the arrow shown in Fig. 1. Between the rows of needles 27 and 28 a bar 40 is located the length of which is equal to that of the rows of frame needles 1`and 2. By means of the said bar the sets of warp threads are held apart from each other. The

" on the throats of the sinkers 3.

rolls 29 and 30 are mounted in bearings 31 and 32 which are shiftable on an annular guide 33 and depend therefrom downward. The said bearings 31 and 32 and the rolls 29 and 30 are periodically shifted so as to gradually move from one side of the frame to the opposite one, and to shift the threads 27 and 28 along the guide rail 40. IVhenever a row of loops has been formed at one of the ends of the bar one or more threads pass from the front side to the rear side of the bar 40, and at the opposite end one or more threads pass over from the rear side to the front side. Thereby the threads of the two sets are gradually transferred at the ends of the rows of needles from one set tothe other one. As the threads thus gradually change their positions relatively to the bar 40, they move through a continuous closed path. This is an. important feature of my invention, because thereby a fabric is producedm which the threads are arranged cross-wise and in such a way that they have always the same direction of the lap. As shown the bearings 31 and 32 for the rollers are advanced by means of a driver coperatingr with a worm gearing 35, 3G which is driven from the shaft 12 through a chain 37.

In order t0 place the threads on the frameneedles in such a way that they cross each other, one of the covering machines, for example the machine 7, is moved with its pins passing between the threads of one set long itudinally of its length. lFor example 1t 1s shifted to the left in Fig. 9 with the threads 28 a distance corresponding to twice thedis tance of two adjacent needles, whereupon 1t passes with its pins also between the other threads 27 and is returned in longitudinal direction the distance corresponding to two adjacent needles. -Thereby both sets of threads are shifted laterally and in opposite directions a distance corresponding to the distance of two adjacent frame needles, as is shown in Figs. 9 and 10. By means of the second covering machine 8 the threads are". held in the positions imparted to them by the first named covering machlne 7, when the.

latter is retracted from its position between the threads prior to being returned into ini tial position by being shifted in longitudinal direction.

The operation of the frame shown in Figs. 1 and 2 is as follows:

In Fig. 3 the parts are shown in the initial positions, and it may be assumed that the frame needles 2 have just completed an operation and the sinkers 4 have stripped the loops formed thereby from'the needles 2. Before the other row of needles l begins its operation, the sinkers 3 and 4 are moved in the direction of the arrow shown in Fig. 4, in order that the loops are lifted Now the warp threads 27 and 28 which are parallel to the axes of the frame needles 1 must be crossed on the needles 1, and for this purposethe covering machine 8 and its needles are first shifted into the positions between the warp threads 28, whereupon they arc shifted with the threads 28 in longitudinal direction for example twice the distance of two Jconsecutive needles so as to pull Vthe threads 28 laterally, whereupon they are passed between the other threads 27 and are shifted therewith in opposite direction the distance of two consecutive needles. After also the second covering machine 7 has been passed with its needles between the rows of threads, as is shown in Fig. 5, the warp threads assulne the positions relatively to one another which are shown in Fig. 10. Now the bayonet machines 5 and 6 are shifted into the positions shown in Fig. 5, so that the warp threads 27 and 28 are brought to the front sides of the frame needles 1, that is to the left side thereof as shown in Fig. 5, whereupon the needles 1 are shifted upward. Now the bayonet machines 6 are moved in the direction toward the frame needles l, as is shown in Figs. 5, 6, and 11, whereby the threads 27 and 28 are brought to cross each other and placed on the shafts and into the hooks of the frame needles 1. In the meantime the covering machine 7 has been withdrawn from its position between the threads.

In Fig. 7 I have shown the parts in the positions in which the frame needles 1 have been moved downward and their hooks closed by means of the rail or presser bar 9, and in which at the same time one of the bayonet machines, 6 has again been retracted from its position between the warp lduced. on the opposite row of frame needles 2.', The operation` of the corresponding parts is the same as that which has just been described, with the exception, however, that the warp threads are shifted transversely of the frame needles in opposite direction and to the left in order to get on the frame needles 2, and that for this purpose the bayonet machine 6 is used which is shown at the right in the figures, while the bayonet machine 5 which is located at the left places the crossed threads on the needles 2.

The regular change in the operation of the frame needles results in a fabric which has the same loops on both sides and which is therefore an integral double fabric.

As appears from Figs. 3 to 8, in my improved warp-knitting frame each ofthe warp machines coperates with the oppothe row of frame needles which are located 'in Figs. 12 to 115 on the same side therewith, and according to another modification for both rows of frame needles a single bayonet machine is provided, while the second bayonet machine is omitted.

The first named modification is illustrated and the vsecond one in Figs. 16 t0 19.v

Referring at first to` the modification shown in Figs. -12 to 15, when the parts are in the positions shown in Fig. 12., which corresponds to Fig. 5, the warp threads 27 and 28 must be yplaced on the frame needles 1. In 'this operation the bayonet machines 5 and 6 hold the threads in'such positions, that they are in front or in Fig. i2 at the left of the said row of frame needles. AAfter the threads have been crossed in the manner described with reference to the example shown in Figs. 3 to 1l, they are placed on the frame needles by means of the bayonet frames whichmove for this purpose into' the positions shown in Fig. 13. Now the loops are formed by means of theframe needles 1 in the same manner' as has been described with reference to Figs. 3 to 11. The warp'fthreads are lplaced on the rear row of vframe needles 2 in the same way,

with the exception, however, that the threads are placed on the frame needles not by means of the front bayonet machines 5 but by the rear bayonet machines 6. In Fig. 14 I have shown the parts in the positions in which the threads have been brought into positions between the frame needles 2, and in Fig. 15 I have illustrated the manner in which the threads are-placed on the said frame needles. Thereafter the new loops are formed.

Where a single bayonet machine is provided, the mechanism is otherwise the same as in the examples shown in Figs. 3 to 15, the difference residing merely in the fact that one of the bayonet machines is omitted and that in lieu thereof a smooth rail 39 is provided which is adapted to be moved rectangularly of the warp threads, as is shown in Figs. 16 and 17. In this case the warp threads are at first brought into Vpositions between the frame needles 1 by means of the bayonet machine 6, whereupon the threads are crossed in the manner described above. In the meantime also the frame needles 1 have moved into their uppermost positions shown in Fig. 17, the

lmeans of the covering machines? and 8,

and finally the bayonet machine 6 pushes the threads in a direction opposite to that indicated in Fig. 18 and` between the frame needles 2, as is shown' in Fig. 19, in order that the threads have the proper positions on the frame needles for .forming-the loops.

The Vbayonet machines 6 and the rail 39 may also be arranged in the reverse sense from what is shown in Fig. 16, the bayonet machine 6 being on the sideof the frame needles 1 and the rail 39 on the side of the frame needles 2.

I claim herein as my invention:

1. In alwarp knitting frame, the combination with two rows of frame needles disposed opposite each other, of meansy for supplying two sets of warp threads to the needles, means coperating with the needles to form the loops, means for bringing the threads into positions for being operated upon alternately by the rows of frame needles, means for gradually passing the threads of both sets in opposite directions along the rows of needles, and means for transferring the threads arriving a't the ends of the rowsof frame needles respectively from their set to the opposite one.

2. In a warp knitting frame, the combi- V nation with two rows of frame needles olis-` posed opposite each other, of means for sup lying two sets of warp threads to the Y nee les, an elongated member parallel to thc rows of frame needles and adapted to hold the seats of warp threads apart, means copneedles to form the loops, and for bringing the threads into positions for being oper- -ated upon alternately by the rows of frame needles, pairs of Acovering machines provided with needles 'and adapted to be shifted with their needles into positions loetween the warp threads and to be shifted longitudinally of the rows of frame needles for crossing the threads, means adapted to place the crossed threads on 'the frame needles, means for gradually passing the threads of both sets in opposite directions along the rows of needles, and means for transferring '.the threads arriving at the ends of the rows of frame needles respectively from their set to the opposite one.

4. Ina warp knitting frame, the` combination with two rows of frame needles disposed opposite each other, of means for supplying two sets of warp threads to the needles. sinker bars coperating with the needles to form the loops, and for bringingl the threads into positions for being operated upon alternately7 by the rows of frame needles, pairs of covering machines provided with needles and adapted to be shifted with their needleslinto positions between the warp threads and to be shifted longitudinally of the rows of frame needles for crossing the threads, two bayonet machines located on opposite sides of the rows of frame needles and adapted to place the crossed threads on the frame" needles, said bayonet machines coperating respectively with the row of frame needles which is located on the same side therewith, means for gradually passing the threads of both sets in opposite directions along the rows of needles, and means for transferring the threads arriving at the ends of the rows of frame needles respectively from their set t0 the opposite one.

F. E. STEGniz, W. H. MCKE 

